The Previous Asset-Rating (if there is one) The name of the Renewable Energy Source. This is a string rather than an enumerated list because the potential sources are unlimited The amount of energy generated from this renewable source These are the specific data-items collected by the HI / EA needed to perform the SAP calculation. Total Usable Floor Area The total sum of the Floor-Area for all the recorded Usable Floor Areas Electric Heating Cooling HeatingHP Not recorded For backward compatability only. For backward compatability only.